There have been many advances in science and medicine since the 30's.  Pluto was discovered in February 18, 1930 by a fortunate accident. It’s now the smallest planet in this galaxy. Using a tool called a blink comparator, Tombaugh finally turned up images of Pluto moving in 1930. It turns out there had been evidence of Pluto in earlier photographs, but nobody had noticed it yet. As the discoverers, Tombaught and his team were given the honor of naming Pluto. In the end, they settled on the name Pluto, suggested by a British schoolgirl.

 Alexander Fleming, a doctor and researcher at St. Mary's Hospital in London, England, published a paper on a chemical he called "penicillin", which he had isolated from a mold, Penicillium notatum. Penicillin, Fleming wrote, had prevented the growth of a neighboring colony of germs in the same petri dish. Dr. Fleming was never able to purify his samples of penicillin, but he became the first person to publish the news of its germ-killing power. In 1931 there was the first clinical use of Penicillin. Its ability to cure people of many once-fatal bacterial infections has saved so many lives that it is easy to understand why it was once called a "miracle drug".

In 1937 there was insulin used to control diabetes. Researchers followed 1,441 people with diabetes for several years. Half of the people continued standard diabetes treatment. The other half followed an intensive-control program. Those on intensive control kept their blood glucose levels lower than those on standard treatment, although the average level was still above normal.

Bibliography

Bill Arnett, "Pluto".
http://www.nineplanets.org/pluto.html, May 2, 2009.

Cerner Multum, "Penicillin".
http://www.drugs.com/penicillin.html. May 3, 2009.

The American Diabetes Association, "American Diabetes".
http://www.diabetes.org, May 4, 2009.